Nitrogen toxicity? Help ya girl out, plz.

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ghostgirl00

ghostgirl00

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First time growing autos. Medium is coco with worm castings, dr earth dry amendments (444 and 394). PH 6.5. Temp 74-79. They are exactly 5 weeks old. I noticed the problem over the last few days. They just received a feeding yesterday with more 394, very little 444 and worm castings. I assume if it was a nute problem there would have been signs earlier since the only feeding took place when they were planted 5 weeks ago. Like I said, I noticed the problem a few days before I fed them again, so the problem wouldn't be new nutrients. and gave them a feeding yesterday since they were starting to flower. Thought about adding more coco to introduce some microorganisms. Anyone offer advice??? Nitrogen toxicity? Watering issue?

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ghostgirl00

ghostgirl00

9
3
Whats the watering schedule like?
I water when the soil feels dried about about 2 inches in. But I got a water meter probe yesterday and the soil is still reading "wet" and they were watered 2 days ago. When growing in coco is it still advised to water til runoff?
 
skinnypuppy

skinnypuppy

103
43
In my opinion they look over watered (bloated leaves tips down) lift the pots if they are heavy they don't need watered. Watering and water uptake really depends on a number of different factors Light being a major one.
 
PauliBhoy

PauliBhoy

221
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my soil ph is about 6.8 so that is pretty high for coco? Sorry, first time using coco, autos and dry amendments.
Yeah it is a bit high. Part of the issue is your water pH, but also did you use any lime/dolomite in your mix?
 
PauliBhoy

PauliBhoy

221
63
Calcium deficiency. Easiest way to get more is to raise humidity and add ful-power.

https://content.ces.ncsu.edu/calcium-deficiency-of-carinata
How does humidity or humic acid aid in Calcium uptake? Humic is well documented in increasing metal (iron, zinc, etc.) uptake but not calcium from the roots.

However Calcium can be applied as a foliar spray with or without humic/fulvic acid to increase uptake and address deficiency.

Anyone offer advice?
If it's not pH or overwatering it looks like early Mg deficiency to me.
 
ComfortablyNumb

ComfortablyNumb

4,403
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I water when the soil feels dried about about 2 inches in. But I got a water meter probe yesterday and the soil is still reading "wet" and they were watered 2 days ago. When growing in coco is it still advised to water til runoff?
What makes you think something is wrong?
 
2Bad

2Bad

767
143
With coco coir you need to water in at least once a day twice a day even better that's probably the cause too much dryback will spike your e.c. Do your ph at 5.9. You want about 10-20 percent of what your putting in to the plant to runoff at the bottom EVERYtime you water. You cannot over water coco 99 percent of the time.
 
2Bad

2Bad

767
143
Looking real good. What's up with the vents being closed and the duct by the plant? just curious is alll
 

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